Weight



E. J. SWEETLAND.

WEIGHT.

APPLICATION man APR. 8, 1919,

1,369,057. Patented Feb. 22, 1921.

UNITED STATES ERNESTJ. SWEETLAND, OF MONTCLAIR, NEW JERSEY.

WEIGHT.

Specification of Letters Patent.

Patented Feb. 22, 1921.

Application filed April 8, 1919. Serial No. 288,640.

To all/w 710m it may concern Be it known that I, Ennns'r J. SWEETLAND, acitizen of the United States,residing in the town of Montclair, countyof Essex, and State of New Jersey, have invented certain new and usefulImprovements in Weights, of which the following is a specification.

ln myprior Patent No. 1,285,462, which was granted on November 19, 1918,I have disclosed. an apparatus for developing photographic negativeswhich includes a collapsible tube of rubber or similar material withinwhich the film is unrolled and then treated with a suitable developingagent.

. The present invention relates to a novel form of weight for carryingthe film spool through the tubular developing receptacle and rotatahlyengaging the film spool so that the film will unwind therefrom as theweight falls through the tubular developing receptacle by the action ofgravity.

Among the objects of the invention is to provide a weighted film spoolcarrier of this,

character which is simple and inexpensive in its construction, whlch canbereadily appliedto film spools of different sizes and,

which can be collapsed into a comparatively small amount of space whennot in use.

lVith these and other objects in view, the invention consists in certainnovel combinations and arrangements of the parts as will more fullyappear as'the description proceeds, the novel features thereof beingpointed out in theappended claims.

For a full understanding of the invention, reference is to behad totheffollowing description and accompanying drawings, in which c Figure 1is a front elevation of a weighted film spool carrier constructed inaccordance with the invention, showing the same'in operative position.

Fig. 2 is a similar view showing the carrier 'ina collapsed condition.Fig. 3 is an end view of 'thedevice when in the'position shown by Fig.1.

Fig. alis an end view of the device when in a collapsed conditionn v o Fig, 5 is a view similar to Fig. 1, showing a modified construction inwhich provision is made for carrying two film spools.

Fig. 6 is a plan view of the modified form of'the film spool carrier ina collapsed condition.

Fig. 7 is an end view of the construction shown by Fig. 5.

or opening of an ordinary filinSpool S. In order tonpply a film spool tothe def Fig. 8 is a similar view showing the posit1on assumed by theparts whencollapsed.

Flg. 9 is a transverse sectional view on the line 99 of Fig. 6.-

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

Referflng to the embodiment of the invention illustrated by Figs. l'tol'inclusive, the numeral 1 designates a weight which has a flat form andis substantially rectangular in shape, the length of the weight beingless than the width of the developing tube through whichthe weight isintended to be dropped. Projecting laterally from the ends of the weightat one edge thereof are ears 2. within which a pair of shafts it areslidably and rotatably mounted, said shafts being in alinement with eachother and arranged parallel tothe longitudinal axis of the weight. Theinner ends of the shafts are surrounded by spiral springs which areattached to the ends of the shaft at 6, saidsprings tending both toslide the in the necessary manner to fold thefilm spool engagingelements, as will be hereinafter described. The outer ends of the shaftsare provided with the rigid arms '7 which are arranged at right anglesthereto" and terminate at their swinging ends in hngers 8 which areadapted to enter the bore vice, the swingingarms .7 are pushed outwardlyin opposite directions, thereby shd ingthe shafts i outwardly againstthe acktion of the springs 5 and separating the fingers 8 so that thefilmspool F can be serted in position between the fingers or removedtherefrom. When applying a film spool the arms '7 are released afterthefilm spoollhas been properlyv positioned, and the springs 5 thenslide the shafts A inwardly and cause the fingers 8 to enter thelongitudinal bore of thefilm spool at theends thereof. Thespool S isthenrotatably engaged by 'thearms 8, and in. order to stop the devicethrough a tubular tank or chain her, such as that described in my beforementioned prior patent, the weight 1 is 'permitted to hang from theshafts 4. The free end of the film F is grasped by the finger orotherwise engaged at the upper end of the tubular chamber,'so that thefilm will be unwound from the spool as the weight 1 drops downwardlythrough the tubular chamber and carries the film spool S with it. Afterthe film spool has been carried through the tubular chamber, the arms 7can be pulled apart to release the spool, and the torsion in the spiralsprings 5 will then swing the arms toward the weight 1 and into positionat the ends thereof. Recessed portions 9 are provided in the weight 1 toreceive the fingers 8, so that there are no projections at the top andbottom of the weight and the entire device will fit within acomparatively small space.

A slight modification is shown by Figs. 5 to 9, inclusive, in whichprovision is made for carrying a plurality of film spools. The weight '1has an elongated flat formation, as in the previous instance, and apivotrod 10 extends longitudin ally through the weight at a point adjacentone edge thereof. A pair of perforated spring arms 7 are pivotallymounted upon the extremities of the rod 10, while an intermediate arm llis pivoted upon the middle portion of the said rod. )ne face of theweight 1 is provided at the middle portion thereof with a transverselyextending recess 12 which provides for pivoting the arm 11 upon the rod10, and also forms a chamber to receive the said intermediate arm 11when the latter is folded against the weight. The outer end of theintermediate arm 11 terminates in a T-head 13 having bearings l t inopposite ends thereof, said bearings receiving ends 15 of the filmspool.The outer ends of the arms 7 as stated are perforated and as the armsare made of springy material, they may be readily sprung over theprojecting ends or studs 15 of the film spool. Obviously to mount thespool, the arm 11 may he swung from its closed position to the positionshown in Fig. 5, whereupon the stud ends 14 of the spools are insertedin the taper-Q tures in the T-head, after which the spring arms 7 areswung outwardly and sprung over the outer projecting studs 15 of thespool. The-weighted carrier carrying the film. spools is then ready tobe dropped througha tubular receptacle or chamber, exactly as previouslydescribed. lVhen the device isnot in use, the shafts 15 are withdrawnfrom position and the arms 7? and 11 swung toward the weight. The arms7. fit closely against the ends of the weight, while the intermediatearm ll is received within the recess 12, a cut away portion 16 beingprovided at the end of the recess 12 j to receive the Thead 13 of theintermediate illustrated in Figs. 1 and 2 is capable of accommodatingthe film spools of varying length, since the spring resisted arms 7 arearranged to separate from each other to any desired extent within theranges of their movement as permitted by the length of the shafts 4: andthe strength or tension of the resisting springs 5.

Vi hile .1 have illustrated and described certain embodiments of theprinciples of my invention, 1 do so in an alternative rather thandefinitive sense as I desire to cover by the appended claims saidprinciples in whatever manner they may be usefully employed. i

Having thus described the invention, what I claim as new herein anddesire to secure by Letters Patent, is: v

1. A device of the character described, including a weight, andadjustable film spool engaging means carried thereby to permit saidweight to be attached to film spools of different lengths.

2. A device of the character described, including a weight, andcollapsible film spool engaging means carried by the weight whereby saidengaging means may be moved into and out of operative position.

3. A device of the character described, including a weight, and filmspool engaging means carried by theweight and foldable against or awayfrom the same.

4. A device of the character described, including a weight,corresponding arms pivota-lly mounted upon the weight and arranged tofold against or away from the same, and spool engaging means at theswinging ends of the arms.

5. A device of the character described, including a: weight,corresponding arms pivotally mounted upon the weight adjacent the upperportion thereof and adapted to be folded against the weight or swungoutwardly with respect thereto, and means at the swinging ends of thearms for engaging a film spool. v

6. A device of thecharacter described, including a fiat weight,corresponding arms pivotally connectedto an edge portion of the 7 weightso as to be folded against the weight or swung outwardly into the planeof the weight, and means at the swinging ends of the arms for engaginga. film spool.

7. A device of the character described, in-

. eluding a weight, film spool engaging means carried by said weight,spring means cooperatively associated with saidfilm spool engaging meanswhereby said weight may be attached to film spools having different 8.in a device of the character described. includingav weight, film spoolengaging arms slidably engaging said Weight. and springs surrounding thesliding ends of said arms tending to resist their movement in adirection away from each other;

lengths. i

9. A device of the character described, including a weight, adjustablefilm spool engaging means cooperatively associated therewith, said meansincluding a pair of arms slidably and rotatably received withinapertures provided in the weight, said arms being provided with inturnedends and spring means resisting the outward movement of said arms in adirection away from each other.

10. A device of the character described, including a weight,corresponding arms pivotally connected to the weight and adapted to befolded against the same or swung outwardly therefrom. and spool engagingmeans at the outer ends of the arms, said weight being recessed toreceive the said spool engaging means when the arms are in a foldedposition.

11. A device of the character described, including a weight,corresponding arms pivotally mounted upon the weight and adapted to befolded against the weight or swung outwardly there-from, spool engagingmeans carried by the free ends of the arms, and yielding means normallytending to swing the arms against the weight.

12. A device of the character described, including a weight, a pair ofcorresponding arms pivotally connected to the weight and adapted to befolded against the weight or swung outwardly therefrom, said arms beingalso movable bodily toward and away from each other, spool engagingfingers at the swinging ends of the arms, and yielding means acting uponthe arms to move the same toward each other and hold the fingers inoperative position.

13. A device of the character described, including a weight, a pair ofcorresponding arms pivotally mounted upon the weight and adapted to befolded against the weight or swung outwardly therefrom, said,

arms being movable bodily toward and away from each other, spoolengaging fingers at the outer ends of the arms, and yielding meansacting upon the arms to move them toward each other and at the same timeswing them toward the weight.

14. A device of the character described, including a weight, a pair ofshafts slidably and rotatably mounted upon the weight, correspondingarms carried by the shafts and adapted to be swung toward the weight oroutwardly therefrom, springs acting upon the shafts to slide the samein' wardly and at the same time rotate the arms toward the weight, andspool engaging fingers at the swinging ends of the arms.

ERNEST J. SWEETLAND.

